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一种防治“酸雨”危害林木的新药在德国推出。新药主要由氨基酸和肽氨胺组成,是一种带刺激性气味的液体,,用它喷洒树木,能
A new drug that prevents “acid rain” from damaging trees was introduced in Germany. The new drug is mainly composed of amino acids and peptide amines, is an irritating odor of the liquid, spray it with trees, can